Electrolytic cell.



PATENTED SEPT.'1, 1908.

G. c. LANDIS. BLBOTROLYTIC CELL.

APPLICATION FILED JULY 2,1907.

l/f/I/l//l/l//i//l//l/l/l/ L rv n GILBERT C. LANDIS, OF YORK, PENNSYLVANIA.

ELECTROLYTIC CELL.

Specification of Letters Patent.

.Patented Sept. l, 1908.

Application lled. July 2, 1907. SerialNo. 381,915.

To all whom it may concern:

le 1t known that I, GILBERT C. LANDrs, a citizen of the United States, residing `in York,.l)ennsylvania, 'have invented certain Improvements in Electrolytic Cells, of which the following is a speciiication. l

One object of my invention is to provide a cell particularly designed for the electrolytic y treatment of solutions of chlorids for the production of ehlerates, which shall have its parts so arranged that the solutionunder ltreatment is forced to circulate and thereby permits the inost efficient operation yof the cell both from the standpoint of current consumption as well as from that of time' required and arnountof finished product obtained.

It is further desired to provide a cell having its parts so arranged relatively to each other that in the event of particles of either the anode or the cathode becoming detached, such pieces will be carried with the solution through the cell in such a manner as to be prevented from short circuiti-ng the cell.

Another object of the invention is to provide a cell particularly designed for the electrelytic treatment of chlorids, which :may be commercial-ly operated without the use of a diaphragm.

These and otheradvantageous ends I attain as hereinafter set'iorth, reference being had to the accompanying drawings, in whicl Figure l, is a side elevation of niy iniproved cell, and, Fig, is a vertical section taken on the line 2 2 Fig. l.

AIn the above drawings, A represents the anode of my improved cell which in the present instance consists of a llat plate of graphite having a terminal a electrically connected to and projecting from its upper edge. The cathode of the cell is formed by a similar plate B also of graphite which has at its u per edge a second terminal l) of the ce l. These two )lates are spaced. apart by a iiat frame C o1g rubber or other suitable insulating material constructed in the .torni ol' a relatively narrow strip or strips extending between the plates adjacent to theiredges 'and forming with thenr a hollow, relatively thin container or cell. Freni the inner edges of the upper and haver portions of this rubber traine projections c ande respectively extend toward the opposite sides thereof, so as to 'forni a relatively circuitous passage through the cell from one endto the other.l

In other words, these projecting portions c and c constitute a series of baffles so that luid entering the inlet c2 of the cell is compelled to flow alternately down and up while passing between the plates to the outlet c3 at the opposite end of the cell.

lThe anode and cathode, with the rubber frame, areheld together in the form of' a closed container by two clamping structures v consisting in the present instance of iron or other metallic plates D and D, which are provided with projecting lugs d for the reception of bolts d whereby the whole structure is connected and clamped together. These lugs are so proportioned that the bolts do not corne into direct contact with the graphite plates, and the iron plates are insulated from said graphite plates by plates or sheets E of insulating material such as asbestos. These insulating sheets or plates are referably of the same extent as are the grap ite and iron plates, so thatvit will be understood there is no opportunity 'for the current to leak from the anode yto the cathode.

The bolts d are set up sufliciently to pre- Vent leakage of the liquid from between the anode or the `cathode and the vrubber frame C, while for the purpose of permitting the escape of any gas which in ay be formed in the4 cell ,'I provide vent pipes c4 extending throuvh the top portion of the rubber frame C. T 1e baille plates c are extended sufficiently near' the bottom portion of the rubberl frame C to cause the current of liquid flowing through the cell to take up and carry with it any solid particles which may fall from the anode or cathode so that there is consequently little opportunity for such particles to cause a short circuit of the cell.

Under operating conditions the terminals va and t are connected to suitable sources of current supply, while the liquid to be treated is delivered to the cell through the inlet c2 from whence it liows up and'down'between the battles c and c until it'iinally Hows out at the openings c3. TWhile passing through the cell it is subjected te the action of the electric current [lowing through at right angles to the general plane ol' its course between the anode and cathode A and B and is thereby decomposed or otherwise acted on as desired.

. The constant agitation of liquid as it passes through the cell results in 'Fresh quantities of uri-ionized material being brought into contact with the ionsprimarily separated at the electrodes and I have i'ound under operating conditions that such action materially aids the formation of ehlorids, particularly at a terposed between each ofthe raphite platesy high temperature. and each of its adjacent meta lic plates, and

I claim as my inventionzbolts extending loetween the lugs of said 15 The combination of a plurality of graphite metallic plates for clamping together the 5 plates having terminals' for connection with various parts.

a source of current, a frame of insulating In testimony whereof, I have signed my material extending around the edges of the name to this specification, in the presence oi' plates and interposed between the graphite two subscribing witnesses.

plates so as to form a eireuitous course for GILBERT C. LANDIS. 10 liquid flowingr 'from the inlet to the outlet, Witnesses:

metallic plates outside of the graphite plates HOWARD WILSON,

and provided with lugs, an asbestos plate in- SAMUEL PPLIN. 

